GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
51. | a=b=c, ?=?=?=90� is a representation of crystal system | ||
A. | Monoclinic | ||
B. | Triclinic | ||
C. | Hexagonal | ||
D. | Trigonal | ||
52. | The phenomenon in which a compound exists in two or more crystalline forms is called | ||
A. | Isomorphism | ||
B. | Polymorphism | ||
C. | Anisotropy | ||
D. | Allotropy | ||
53. | Which solids are called true solids? | ||
A. | Metallic | ||
B. | Amorphous | ||
C. | Crystalline | ||
D. | Vitreous | ||
54. | Buckyballs is an allotropic form of | ||
A. | Sulphur | ||
B. | Carbon | ||
C. | Silica | ||
D. | Tin | ||
55. | The number amino acid units for each turn of the helix on average are | ||
A. | 21 | ||
B. | 23 | ||
C. | 25 | ||
D. | 27 | ||